Apparently the party wants the euro to either be scrapped, or be split into two different currencies – ‘euro’ and ‘euro2’. It’s likely this would lead to further demands (and criticisms) of the Union.

But while Grillo and co. might look like a bit of a fringe movement, Five Star did win 19 out of 20 mayoral elections in the country on Sunday.

And a poll last month showed 58% of Italians want a referendum on their EU membership, while almost half would vote to leave.

So it’s probably one to watch.

France

We had to mention Marine Le Pen (Picture: Getty Images)

Marine Le Pen, leader of France’s far-right Front National, called last night for a French referendum on the EU.

She’s basically France’s version of Nigel Farage. She’s a far-right eurosceptic with pretty awful views – some of which appear to be gaining traction.

According a poll conducted by Ipsos MORI last month, around 41% of people in France would vote to leave the EU if they got the chance.

And some honourable mentions…

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While people are watching Sweden, they’re also keeping a cursory eye on Denmark and other wealthy northern European countries.

It’s probably also worth checking on Ireland, which has been left in a particularly awkward position after Brexit’s victory.

And then there’s the question of people in Gibraltar – the majority of whom want to remain both in the UK and the EU, given that they depend so heavily on EU trade. Now we’ve voted Leave, they could theoretically decide to become Spanish again.